According to Tencent's video query, Dewey, the protagonist, finally chose to be with Vivian in the ending of the cartoon "Demon Law". They have established deep feelings and experienced many difficulties and challenges together. Vivian, as Dewey's wife and an eight-level magician, plays an important role in the growth of the protagonist and the development of the story. Their love has gone through the test and finally came together to face the future adventures and challenges together. This ending is also in line with the logic of plot development and role relationship in the novel.